EP3627925A1 - Procédé de communication sans fil, dispositif de réseau et dispositif de terminal - Google Patents

Procédé de communication sans fil, dispositif de réseau et dispositif de terminal Download PDF

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Publication number
EP3627925A1
EP3627925A1 EP17920683.4A EP17920683A EP3627925A1 EP 3627925 A1 EP3627925 A1 EP 3627925A1 EP 17920683 A EP17920683 A EP 17920683A EP 3627925 A1 EP3627925 A1 EP 3627925A1
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EP
European Patent Office
Prior art keywords
dci format
dci
reference signal
resource
type
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Application number
EP17920683.4A
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German (de)
English (en)
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EP3627925A4 (fr
Inventor
Hai Tang
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Publication of EP3627925A1 publication Critical patent/EP3627925A1/fr
Publication of EP3627925A4 publication Critical patent/EP3627925A4/fr
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of communication, and more particularly to a wireless communication method, a network device, and a terminal device.
  • resource scheduling is scheduling based on a slot, and the unit of each resource scheduling is a slot or subframe.
  • scheduling of a resource may be based on the scheduling of a slot or the scheduling of a symbol.
  • a network device e.g., base station
  • DCI Downlink Control Information
  • Embodiments of the present application provide a wireless communication method, a network device, and a terminal device.
  • the network device implicitly indicates a resource scheduling mode and/or a reference signal transmission mode through a downlink control information format (DCI format), so that the control signaling overhead caused by the indication of control signaling is avoided, and the operation complexity and energy consumption of the terminal device are reduced.
  • DCI format downlink control information format
  • an embodiment of the present application provides a wireless communication method, including: sending downlink control information (DCI) to a terminal device through a first DCI format among multiple downlink control information formats (DCI formats), wherein the multiple DCI formats include a first type of DCI format and a second type of DCI format, the first type of DCI format corresponds to a first resource scheduling mode, the second type of DCI format corresponds to a second resource scheduling mode, the first resource scheduling mode indicates a time domain resource in unit of slot, the second resource scheduling mode indicates a time domain resource in unit of symbol, and the first DCI format is the first type of DCI format or the second type of DCI format; and transmitting a data channel through a resource scheduling mode corresponding to the first DCI format.
  • DCI downlink control information
  • the network device may classify downlink control information formats (DCI Formats) into a first type of DCI format and a second type of DCI format.
  • DCI Formats downlink control information formats
  • a network device indicates a time domain resource in unit of slot through a first type of DCI format and indicates a time domain resource in unit of symbol through a second type of DCI format.
  • the network device may implicitly indicate a resource scheduling mode through a downlink control information format, so that the control signaling overhead caused by the indication of control signaling is avoided, and the operation complexity and energy consumption of the terminal device are reduced.
  • the method further includes: transmitting a reference signal of the data channel through a reference signal mode corresponding to the first DCI format.
  • the first type of DCI format corresponds to a first reference signal mode
  • the second type of DCI format corresponds to a second reference signal mode
  • the one group of symbols are symbols used for transmitting the data channel and the reference signal of the data channel.
  • a network device indicates the presence of at least one reference signal located at a specific symbol of a slot through a first type of DCI format and indicates the presence of at least one reference signal located at a specific symbol of a group of symbols through a second type of DCI format.
  • the network device may implicitly indicate a reference signal transmission mode through a downlink control information format, so that the control signaling overhead caused by the indication of control signaling is avoided, and the operation complexity and energy consumption of the terminal device are reduced.
  • the specific symbol of the slot is a third time domain symbol or a fourth time domain symbol of the slot.
  • the specific symbol among the one group of symbols is a first symbol among the one group of symbols.
  • the reference signal is a demodulation reference signal (DMRS).
  • DMRS demodulation reference signal
  • sending the DCI to the terminal device through the first DCI format among the multiple DCI formats includes: sending the DCI to the terminal device on a first resource through the first DCI format.
  • the first resource is a resource in unit of slot.
  • the first resource is a resource in unit of symbol.
  • the first resource is a control resource set or a search space for transmitting a physical downlink control channel.
  • an embodiment of the present application provides a wireless communication method, including: receiving downlink control information (DCI) from a network device; determining a downlink control information format (DCI format) of the DCI, wherein the DCI format of the DCI is a first type of DCI format or a second type of DCI format, the first type of DCI format corresponds to a first resource scheduling mode, the second type of DCI format corresponds to a second resource scheduling mode, the first resource scheduling mode indicates a time domain resource in unit of slot, and the second resource scheduling mode indicates a time domain resource in unit of symbol; and determining a resource scheduling mode of a data channel corresponding to the DCI according to the DCI format of the DCI.
  • DCI downlink control information
  • DCI format downlink control information format
  • a network device indicates a time domain resource in unit of slot through a first type of DCI format and indicates a time domain resource in unit of symbol through a second type of DCI format.
  • the network device may implicitly indicate a resource scheduling mode through a downlink control information format, so that the control signaling overhead caused by the indication of control signaling is avoided, and the operation complexity and energy consumption of the terminal device are reduced.
  • the method further includes: determining a reference signal mode of the data channel according to the DCI format of the DCI, wherein the first type of DCI format corresponds to a first reference signal mode, the second type of DCI format corresponds to a second reference signal mode, there is at least one reference signal located at a specific symbol of a slot in the first reference signal mode, there is at least one reference signal located at a specific symbol among one group of symbols in the second reference signal mode, and the one group of symbols are symbols used for transmitting the data channel and a reference signal of the data channel; and determining a reference signal position of the data channel according to a reference signal mode of the data channel.
  • a network device indicates the presence of at least one reference signal located at a specific symbol of a slot through a first type of DCI format and indicates the presence of at least one reference signal located at a specific symbol of a group of symbols through a second type of DCI format.
  • the network device may implicitly indicate a reference signal transmission mode through a downlink control information format, so that the control signaling overhead caused by the indication of control signaling is avoided, and the operation complexity and energy consumption of the terminal device are reduced.
  • the specific symbol of the slot is a third time domain symbol or a fourth time domain symbol of the slot.
  • the specific symbol among the one group of symbols is a first symbol among the one group of symbols.
  • the reference signal is a demodulation reference signal (DMRS).
  • DMRS demodulation reference signal
  • receiving the DCI from the network device includes: receiving the DCI from the network device on a first resource, wherein when the first resource is a resource in unit of slot, the DCI format is the first type of DCI format, and when the first resource is a resource in unit of symbol, the DCI format is the second type of DCI format.
  • Determining the DCI format of the DCI includes: determining the DCI format of the DCI according to the first resource.
  • a terminal device may determine the DCI format corresponding to the DCI through the granularity of the first resource on the time domain, and further determine the resource scheduling mode and/or the reference signal transmission mode according to the type of the DCI format. Thereby, the operation complexity and energy consumption of the terminal device are reduced.
  • the first resource is a control resource set or a search space for transmitting a physical downlink control channel.
  • an embodiment of the present application provides a network device that may execute a module or unit of the method in the first aspect or any alternative implementation of the first aspect.
  • an embodiment of the present application provides a terminal device that may execute a module or unit of the method in the second aspect or any alternative implementation of the second aspect.
  • a network device in a fifth aspect, includes a processor, a memory, and a communication interface.
  • the processor is connected with the memory and the communication interface.
  • the memory is used for storing instructions
  • the processor is used for executing the instructions
  • the communication interface is used for communicating with other network elements under the control of the processor.
  • a terminal device in a sixth aspect, includes a processor, a memory, and a communication interface.
  • the processor is connected with the memory and the communication interface.
  • the memory is used for storing instructions
  • the processor is used for executing the instructions
  • the communication interface is used for communicating with other network elements under the control of the processor.
  • a computer storage medium stores program codes for instructing a computer to execute instructions of a method in the first aspect or any possible implementation of the first aspect.
  • a computer storage medium stores program codes for instructing a computer to execute instructions of a method in the second aspect or any possible implementation of the second aspect.
  • a computer program product including instructions, wherein when being executed on a computer, the computer program product causes the computer to perform the methods described in the above-mentioned various aspects.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet wireless Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • FIG. 1 shows a wireless communication system 100 to which an embodiment of the present application is applied.
  • the wireless communication system 100 may include a network device 110.
  • the network device 110 may be a device that communicates with a terminal device.
  • the network device 110 may provide communication coverage for a specific geographical region, and may communicate with a terminal device (e.g., UE) in the coverage region.
  • the network device 110 may be a Base Transceiver Station (BTS) in a GSM system or CDMA system, a NodeB (NB) in a WCDMA system, an Evolutional Node B (eNB or eNodeB) in an LTE system, or a radio controller in a Cloud Radio Access Network (CRAN).
  • BTS Base Transceiver Station
  • NB NodeB
  • eNB or eNodeB Evolutional Node B
  • LTE Long Term Evolutional Node B
  • CRAN Cloud Radio Access Network
  • the network device may be a relay station, an access point, a vehicle-mounted
  • the wireless communication system 100 further includes at least one terminal device 120 in the coverage region of the network device 110.
  • the terminal device 120 may be mobile or fixed.
  • the terminal device 120 may be referred to as an access terminal, a User Equipment (UE), a subscriber unit, a subscriber station, a mobile station, a mobile platform, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user apparatus.
  • UE User Equipment
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with a wireless communication function, a computing device or another processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved Public Land Mobile Network (PLMN), or the like.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • D2D communication may be performed between the terminal devices 120.
  • the 5G system or network may also be referred to as a New Radio (NR) system or network.
  • NR New Radio
  • FIG. 1 exemplifies one network device and two terminal devices.
  • the wireless communication system 100 may include multiple network devices, and another quantity of terminal devices may be included within the coverage region of each network device, which is not limited in embodiments of the present application.
  • the wireless communication system 100 may further include other network entities such as a network controller, a mobile management entity, which is not limited in embodiments of the present application.
  • network entities such as a network controller, a mobile management entity, which is not limited in embodiments of the present application.
  • Non-slot-based scheduling In the 5G NR standard, two scheduling modes are supported: slot-based scheduling and symbol-based scheduling (non-slot-based scheduling).
  • the non-slot-based scheduling is to reduce the granularity of scheduling in the time domain to an orthogonal frequency division multiplexing (OFDM) symbol, which may realize more flexible time domain resource allocation.
  • Slot-based scheduling and non-slot-based scheduling have different time domain position determination manners for a demodulation reference signal (DMRS).
  • DMRS demodulation reference signal
  • the first column of DMRS in the slot-based scheduling mode is located at the 3rd or 4th symbol of a slot.
  • the first column of DMRS in the non-slot-based scheduling mode is located at the first symbol of a data channel.
  • the base station will indicate which of the above two scheduling modes is used to schedule the terminal.
  • the network device may implicitly indicate the resource scheduling mode and/or the reference signal transmission mode through a downlink control information format (DCI format).
  • DCI format downlink control information format
  • all DCI Formats are classified into a first type of DCI format and a second type of DCI format, the first type of DCI format corresponds to a first resource scheduling mode, the second type of DCI format corresponds to a second resource scheduling mode, the first resource scheduling mode indicates a time domain resource in unit of slot, and the second resource scheduling mode indicates a time domain resource in unit of symbol.
  • DCI 0, DCI 1A, DCI 1B, DCI 1C, DCI 1D, DCI 2, DCI 2A, DCI 2B, DCI 3, and DCI 3A are DCI types related to a Physical Uplink Shared Channel (PUSCH) or a Physical Uplink Control Channel (PUCCH).
  • DCI 1, DCI 1A, DCI 1B, DCI 1C, DCI 1D, DCI 2, DCI 2A, and DCI 2B are DCI types for a Physical Downlink Shared Channel (PDSCH).
  • DCI 0, DCI 3, and DCI 3A may be classified as a first type of DCI format
  • DCI 1, DCI 1A, DCI 1B, DCI 1C, DCI 1D, DCI 2, DCI 2A, and DCI 2B may be classified as a second type of DCI format.
  • system and “network” are often used interchangeably in this document.
  • the term “and/or” in this document is merely an association relationship describing associated objects, indicating that there may be three relationships, for example, A and/or B may indicate three cases: A alone, A and B, and B alone.
  • the symbol “/” in this document generally indicates that objects before and after the symbol "/" have an "or” relationship.
  • FIG. 2 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application.
  • the method 200 may be performed by a network device, which may be a network device as shown in FIG. 1
  • a terminal device in the method 200 may be a terminal device as shown in FIG. 1 .
  • the method 200 includes the following contents.
  • a network device sends downlink control information (DCI) to a terminal device through a first DCI format among multiple DCI formats.
  • DCI downlink control information
  • the multiple DCI formats include a first type of DCI format and a second type of DCI format, the first type of DCI format corresponds to a first resource scheduling mode, the second type of DCI format corresponds to a second resource scheduling mode, the first resource scheduling mode indicates a time domain resource in unit of slot, and the second resource scheduling mode indicates a time domain resource in unit of symbol.
  • the first DCI format is the first type of DCI format or the second type of DCI format.
  • the network device transmits a data channel through a resource scheduling mode corresponding to the first DCI format.
  • the terminal device may determine the resource scheduling mode according to the format of the DCI, and accurately transmit the data channel through the time domain resource corresponding to the resource scheduling mode determined according to the format of the DCI.
  • the method 200 further includes: transmitting, by the network device, a reference signal of the data channel through a reference signal mode corresponding to the first DCI format.
  • the first type of DCI format corresponds to a first reference signal mode
  • the second type of DCI format corresponds to a second reference signal mode
  • the one group of symbols are symbols used for transmitting the data channel and the reference signal of the data channel.
  • the reference signal is a demodulation reference signal (DMRS).
  • DMRS demodulation reference signal
  • the specific symbol of the slot is a third time domain symbol or a fourth time domain symbol of the slot.
  • the specific symbol among the one group of symbols is a first symbol among the one group of symbols.
  • the specific symbol is the symbol position of the first column of DMRS.
  • the first column of DMRS is located at the 3rd or 4th symbol of the slot, and for the non-slot-based scheduling mode, the first column of DMRS is located at the first symbol of the data channel, that is, the first symbol among the one group of symbols.
  • sending the DCI to the terminal device through the first DCI format among the multiple DCI formats includes: sending the DCI to the terminal device on a first resource through the first DCI format.
  • the first resource is a resource in unit of slot.
  • the first resource is a resource in unit of symbol.
  • the terminal device may determine the DCI format according to the granularity of the first resource. For example, if the granularity of the first resource is a slot, the DCI format is the first DCI format. If the granularity of the first resource is a symbol, the DCI format is the second DCI format.
  • the first resource is a control resource set or a search space for transmitting a physical downlink control channel.
  • a network device indicates a time domain resource in unit of slot through a first type of DCI format and indicates a time domain resource in unit of symbol through a second type of DCI format.
  • the network device may implicitly indicate a resource scheduling mode through a downlink control information format, so that the control signaling overhead caused by the indication of control signaling is avoided, and the operation complexity and energy consumption of the terminal device are reduced.
  • the network device indicates the presence of at least one reference signal located at a specific symbol of a slot through a first type of DCI format and indicates the presence of at least one reference signal located at a specific symbol of one group of symbols through a second type of DCI format.
  • the network device may implicitly indicate a reference signal transmission mode through a downlink control information format, so that the control signaling overhead caused by the indication of control signaling is avoided, and the operation complexity and energy consumption of the terminal device are reduced.
  • FIG. 3 is a schematic flowchart of a wireless communication method 300 according to an embodiment of the present application.
  • the method 300 may be performed by a terminal device, which may be the terminal device as shown in FIG. 1 , and a network device in the method 300 may be the network device as shown in FIG. 1 .
  • the method 300 includes the following contents.
  • a terminal device receives downlink control information (DCI) from a network device.
  • DCI downlink control information
  • the terminal device determines a DCI format of the DCI.
  • the DCI format of the DCI is the first type of DCI format or the second type of DCI format.
  • the first type of DCI format corresponds to a first resource scheduling mode
  • the second type of DCI format corresponds to a second resource scheduling mode
  • the first resource scheduling mode indicates a time domain resource in unit of slot
  • the second resource scheduling mode indicates a time domain resource in unit of symbol.
  • the terminal device determines a resource scheduling mode of a data channel corresponding to the DCI according to the DCI format of the DCI.
  • the method 300 further includes: determining, by the terminal device, a reference signal mode of the data channel according to the DCI format of the DCI, wherein the first type of DCI format corresponds to a first reference signal mode, the second type of DCI format corresponds to a second reference signal mode, there is at least one reference signal located at a specific symbol of a slot in the first reference signal mode, there is at least one reference signal located at a specific symbol among one group of symbols in the second reference signal mode, and the one group of symbols are symbols used for transmitting the data channel and a reference signal of the data channel; and determining, by the terminal device, a reference signal position of the data channel according to a reference signal mode of the data channel.
  • the specific symbol of the slot is a third time domain symbol or a fourth time domain symbol of the slot.
  • the specific symbol among the one group of symbols is a first symbol among the one group of symbols.
  • the reference signal is a demodulation reference signal (DMRS).
  • DMRS demodulation reference signal
  • receiving the DCI from the network device includes: receiving the DCI from the network device on a first resource, wherein when the first resource is a resource in unit of slot, the DCI format is the first type of DCI format, and when the first resource is a resource in unit of symbol, the DCI format is the second type of DCI format; determining the DCI format of the DCI includes: determining, by the terminal device, the DCI format of the DCI according to the first resource.
  • the first resource is a control resource set (CORESET) or a search space (Search Space) for transmitting a physical downlink control channel.
  • CORESET control resource set
  • Search Space search space
  • a terminal device may determine a searched DCI format according to a cycle of the first resource (control resource set or search space), and determine a data channel scheduling mode and DMRS symbol position according to the DCI format.
  • FIG. 4 shows following acts.
  • a terminal device receives configuration of a control resource set/search space sent by a network device.
  • the configuration of the control resource set/search space may be configured with a slot as the granularity, or configured with a symbol as the granularity.
  • act 421 if the control resource set/search space is configured with a slot as the granularity, the terminal device searches for DCI in a first DCI format in the control resource set/search space.
  • the terminal device receives the DCI in the first DCI format.
  • the terminal device determines that a data channel adopts a first resource scheduling mode and a first reference signal mode.
  • the terminal device determines a data channel resource and a reference signal position based on the first resource scheduling mode and the first reference signal mode.
  • the terminal device receives or sends the data channel.
  • the terminal device searches for DCI in a second DCI format in the control resource set/search space.
  • the terminal device receives the DCI in the second DCI format.
  • the terminal device determines that a data channel adopts a second resource scheduling mode and a second reference signal mode.
  • the terminal device determines a data channel resource and a reference signal position based on the second resource scheduling mode and the second reference signal mode.
  • the terminal device receives or sends the data channel.
  • a terminal device may determine a data channel scheduling mode and DMRS symbol position according to a DCI format.
  • FIG. 5 shows following acts.
  • a terminal device receives configuration of a control resource set/search space sent by a network device.
  • the terminal device searches for DCI in the control resource set/search space.
  • the terminal device receives the DCI in the first DCI format.
  • the terminal device determines that a data channel adopts a first resource scheduling mode and a first reference signal mode.
  • the terminal device determines a data channel resource and a reference signal position based on the first resource scheduling mode and the first reference signal mode.
  • the terminal device receives or sends the data channel.
  • the terminal device receives the DCI in the second DCI format.
  • the terminal device determines that a data channel adopts a second resource scheduling mode and a second reference signal mode.
  • the terminal device determines a data channel resource and a reference signal position based on the second resource scheduling mode and the second reference signal mode.
  • the terminal device receives or sends the data channel.
  • the acts in the wireless communication method 300 may refer to the description of corresponding acts in the wireless communication method 200, and will not be repeated here for the sake of brevity.
  • a network device indicates a time domain resource in unit of slot through a first type of DCI format and indicates a time domain resource in unit of symbol through a second type of DCI format.
  • the network device may implicitly indicate a resource scheduling mode through a downlink control information format, so that the control signaling overhead caused by the indication of control signaling is avoided, and the operation complexity and energy consumption of the terminal device are reduced.
  • the network device indicates the presence of at least one reference signal located at a specific symbol of a slot through a first type of DCI format and indicates the presence of at least one reference signal located at a specific symbol of one group of symbols through a second type of DCI format.
  • the network device may implicitly indicate a reference signal transmission mode through a downlink control information format, so that the control signaling overhead caused by the indication of control signaling is avoided, and the operation complexity and energy consumption of the terminal device are reduced.
  • the terminal device may determine the DCI format corresponding to the DCI through the granularity of the first resource on the time domain, and further determine the resource scheduling mode and/or the reference signal transmission mode according to the type of the DCI format.
  • FIG. 6 is a schematic block diagram of a network device 600 according to an embodiment of the present application. As shown in FIG. 6 , the network device 600 includes a transceiving unit 610.
  • the transceiving unit 610 is used for sending DCI to a terminal device through a first DCI format among multiple DCI formats.
  • the multiple DCI formats include a first type of DCI format and a second type of DCI format, the first type of DCI format corresponds to a first resource scheduling mode, the second type of DCI format corresponds to a second resource scheduling mode, the first resource scheduling mode indicates a time domain resource in unit of slot, the second resource scheduling mode indicates a time domain resource in unit of symbol, and the first DCI format is the first type of DCI format or the second type of DCI format.
  • the transceiving unit 610 is further used for transmitting a data channel through a resource scheduling mode corresponding to the first DCI format.
  • the transceiving unit 610 is further used for transmitting a reference signal of the data channel through a reference signal mode corresponding to the first DCI format.
  • the first type of DCI format corresponds to a first reference signal mode
  • the second type of DCI format corresponds to a second reference signal mode
  • the one group of symbols are symbols used for transmitting the data channel and a reference signal of the data channel.
  • the specific symbol of the slot is a third time domain symbol or a fourth time domain symbol of the slot.
  • the specific symbol among the one group of symbols is a first symbol among the one group of symbols.
  • the reference signal is a demodulation reference signal (DMRS).
  • DMRS demodulation reference signal
  • the transceiving unit 610 is specifically used for sending the DCI to the terminal device on a first resource through the first DCI format.
  • the first resource is a resource in unit of slot.
  • the first resource is a resource in unit of symbol.
  • the first resource is a control resource set or a search space for transmitting a physical downlink control channel.
  • the network device 600 may correspond to the network device in the method embodiments of the present application, and the above and other operations and/or functions of various units in the network device 600 are respectively for realizing the corresponding processes of the network device in the method 200 shown in FIG. 2 , and will not be repeated here for the sake of brevity.
  • FIG. 7 is a schematic block diagram of a terminal device 700 according to an embodiment of the present application. As shown in FIG. 7 , the terminal device 700 includes a receiving unit 710 and a processing unit 720.
  • the receiving unit 710 is used for receiving downlink control information (DCI) from a network device.
  • DCI downlink control information
  • the processing unit 720 is used for determining a DCI format of the DCI.
  • the DCI format of the DCI is a first type of DCI format or a second type of DCI format, the first type of DCI format corresponds to a first resource scheduling mode, the second type of DCI format corresponds to a second resource scheduling mode, the first resource scheduling mode indicates a time domain resource in unit of slot, and the second resource scheduling mode indicates a time domain resource in unit of symbol.
  • the processing unit 720 is further used for determining a resource scheduling mode of a data channel corresponding to the DCI according to the DCI format of the DCI.
  • the processing unit 720 is further used for determining a reference signal mode of the data channel according to the DCI format of the DCI.
  • the first type of DCI format corresponds to a first reference signal mode
  • the second type of DCI format corresponds to a second reference signal mode
  • the one group of symbols are symbols used for transmitting the data channel and a reference signal of the data channel.
  • the processing unit 720 is further used for determining a reference signal position of the data channel according to a reference signal mode of the data channel.
  • the specific symbol of the slot is a third time domain symbol or a fourth time domain symbol of the slot.
  • the specific symbol among the one group of symbols is a first symbol among the one group of symbols.
  • the reference signal is a demodulation reference signal (DMRS).
  • DMRS demodulation reference signal
  • the receiving unit 710 is further used for receiving the DCI from the network device on a first resource. If the first resource is a resource in unit of slot, the DCI format is the first type of DCI format, and if the first resource is a resource in unit of symbol, the DCI format is the second type of DCI format.
  • the processing unit 720 is further used for determining the DCI format of the DCI according to the first resource.
  • the first resource is a control resource set or a search space for transmitting a physical downlink control channel.
  • terminal device 700 may correspond to the terminal device in the method embodiment of the present application, and the above and other operations and/or functions of various units in the terminal device 700 are respectively for realizing the corresponding processes of the terminal device in the method 300 shown in FIG. 3 , and will not be repeated here for brevity.
  • FIG. 8 shows a schematic block diagram of a device 800 for wireless communication provided by an embodiment of the present application.
  • the device 800 includes: a memory 810 used for storing a program including codes, a transceiver 820 used for communicating with other devices, and a processor 830 used for executing program codes in the memory 810.
  • the processor 830 may implement various operations performed by the network device in the method 200 in FIG. 2 , which will not be repeated here for brevity.
  • the device 800 may be an access network device or a core network device.
  • the transceiver 820 is used for performing specific transmitting and receiving of signals under the driving of the processor 830.
  • the processor 830 may implement various operations performed by the terminal device in the method 300 in FIG. 3 , which will not be repeated here for brevity.
  • the device 800 may be a terminal device, such as a cell phone.
  • the processor 830 may be a Central Processing Unit (CPU), or the processor 830 may be another general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or another programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or the like.
  • the general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory 810 may include a read only memory and a random access memory, and provide instructions and data to the processor 830. A portion of memory 810 may include non-transitory random access memory. For example, the memory 810 may also store type information of a device.
  • the transceiver 820 may be used for implementing signal transmission and reception functions, such as frequency modulation and demodulation functions, or up-conversion and down-conversion functions.
  • the wireless communication device 800 may be a chip or chip set.
  • the acts of the method disclosed in connection with the embodiment of the present application may be directly embodied to be completed by an execution of a hardware processor or by an execution of a combination of hardware and software modules in a processor.
  • the software modules may be located in a storage medium commonly used in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, or a register.
  • the storage medium is located in the memory, and the processor 830 reads the information in the memory and accomplishes the acts of the method with its hardware. In order to avoid repetition, it will not be described in detail here.
  • FIG. 9 is a schematic block diagram of a system chip 900 according to an embodiment of the present application.
  • the system chip 900 of FIG. 9 includes an input interface 901, an output interface 902, a processor 903 and a memory 904, which may be connected through internal communication connection lines.
  • the processor 903 is used for executing codes in the memory 904.
  • the processor 903 implements the method executed by the network device in the method embodiment.
  • the specific description will not be repeated here.
  • the processor 903 implements the method executed by the terminal device in the method embodiment.
  • the specific description will not be repeated here.
  • the disclosed system, apparatus and method may be implemented in other ways.
  • the apparatus embodiment described above is only illustrative, for example, the division of the unit is only a logical function division, and there may be other ways of division in actual implementation, for example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, apparatuses or units, and may be in electrical, mechanical or other forms.
  • the units described as separated components may or may not be physically separated, and the component shown as a unit may or may not be a physical unit, i.e., it may be located in one place or may be allocated over multiple network units. Some or all of the units may be selected according to practical needs to achieve a purpose of the solution of the embodiments.
  • various functional units in various embodiments of the present application may be integrated in one processing unit, or various units may be physically present separately, or two or more units may be integrated in one unit.
  • the functions may be stored in a computer readable storage medium if implemented in a form of software functional units and sold or used as a separate product.
  • the technical solution of the present application in essence, or the part contributing to the existing art, or the part of the technical solution, may be embodied in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the acts of the methods described in various embodiments of the present application.
  • the aforementioned storage medium includes various media capable of storing program codes, such as a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
EP17920683.4A 2017-08-11 2017-08-11 Procédé de communication sans fil, dispositif de réseau et dispositif de terminal Pending EP3627925A4 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022066074A1 (fr) * 2020-09-23 2022-03-31 Telefonaktiebolaget Lm Ericsson (Publ) Canal de commande pour une communication sans fil

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
CN114448586A (zh) * 2020-11-06 2022-05-06 维沃移动通信有限公司 指示工作模式的方法、装置及设备

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101557676B1 (ko) * 2008-10-31 2015-10-06 삼성전자주식회사 이동무선 통신시스템의 하향링크 제어채널의 페이로드 크기결정장치 및 방법
CN101971681B (zh) * 2009-05-22 2014-12-10 华为技术有限公司 多子帧调度方法、系统及终端、基站
CN107579809B (zh) * 2011-08-12 2021-04-02 交互数字专利控股公司 用于无线系统中灵活的带宽操作的下行链路资源分配
EP2941077B1 (fr) * 2013-01-18 2019-06-05 Huawei Technologies Co., Ltd. Procédé et dispositif de transmission de pdsch
CN110719638A (zh) * 2014-05-30 2020-01-21 华为技术有限公司 一种下行控制信息的发送、接收方法和设备
US10117235B2 (en) 2015-04-10 2018-10-30 Lg Electronics Inc. Method and device for supporting HARQ in unlicensed band
CN107733602B (zh) * 2016-08-12 2022-05-10 华为技术有限公司 一种控制信息传输方法及装置
CN106385709B (zh) 2016-10-31 2022-12-20 宇龙计算机通信科技(深圳)有限公司 资源调度方法及资源调度装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022066074A1 (fr) * 2020-09-23 2022-03-31 Telefonaktiebolaget Lm Ericsson (Publ) Canal de commande pour une communication sans fil

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US20200162226A1 (en) 2020-05-21
EP3627925A4 (fr) 2020-06-17

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